The one I can vouch for if you go the indy route is Roksi, formerly from GOE; great looking girl and top-notch service. She has an ad on Eros Toronto, and has tons of reviews on terb.
I met her two years ago when she was just starting out. I think she had been in Canada less than a week. I believe she's the only redhead i've ever been with. I had seen Kareena (currently one of my two Toronto atfs) the previous day. Both of them had rooms a few steps away from my own room at a downtown hotel (quite a coincidence). Kareena asked me if i had seen Roksi & recommended her. Later in the day, walking by Roksi's room, i could hear her loud moaning & told myself: "Now, i gotta meet this girl!"
Later that evening, i walked by her room & once again, very loud moans were coming from her room. You could hear her all the way to the elevators in the next hallway. I wound up seeing her the following day & she seemed to enjoy moaning loudly & talking very dirty on purpose. She absolutely adored being talked dirty to. And spanked. Later that afternoon, i was heading towards my room & noticed two security guards near Roksi's room. Her loud moans & dirty talk could once again be heard all the way down the hallway. It appeared that the security people were trying to figure out what to do with this situation. As i walked by them, i whispered to them: "Now, that's one lucky s.o.b. in there!" They looked concerned & didn't find my comment funny.
p.s. I know it's been two years, but looking at Roksi's pictures on Eros the other day, it almost seems like she's a totally different person. I know others on Terb have mentionned the same thing.
Another agency i'd suggest is Toronto Girlfriends. But once again, it's tough to beat DM.